684539330 has 8 divisors (see below), whose sum is σ = 1232170812. Its totient is φ = 273815728.

The previous prime is 684539327. The next prime is 684539333. The reversal of 684539330 is 33935486.

684539330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (684539327) and next prime (684539333).

It can be written as a sum of positive squares in 2 ways, for example, as 683770201 + 769129 = 26149^2 + 877^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (684539333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34226957 + ... + 34226976.

Almost surely, 2^684539330 is an apocalyptic number.

684539330 is a deficient number, since it is larger than the sum of its proper divisors (547631482).

684539330 is a wasteful number, since it uses less digits than its factorization.

684539330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68453940.

The product of its (nonzero) digits is 233280, while the sum is 41.

The square root of 684539330 is about 26163.7025285031. The cubic root of 684539330 is about 881.3183279180.

The spelling of 684539330 in words is "six hundred eighty-four million, five hundred thirty-nine thousand, three hundred thirty".